Continuous Emissions Monitoring Systems (CEMS) installation, maintenance & compliance services. Part 60, 63 & 75 evaluations from Alliance experts. Services / On-Site Testing / Source Testing / CEMS CEMS Reduce your downtime risks with continuous monitoring. CEMS (Continuous Emissions Monitoring System) services are tailored to your compliance needs, and you can count on our extensive spare parts stock for fast service on your specific brand of equipment. Our CEMS areas of expertise cover a broad range of equipment types and industries. Alliance provides a comprehensive solution for emissions management, ensuring regulatory compliance, accurate monitoring, and timely maintenance. CEMS Service Offerings: Turnkey CEMS Integration | Temp CEMS | Installations | Commissioning | Training | Equipment Upgrades | Maintenance | QA/QC Audits | RATA Support Round-the-Clock Support: 24/7/365 support is always within reach. Fully Stocked Parts Inventory: The OEM brand name parts you need are on hand. Regulatory Assurance: Continuous monitoring and reporting to ensure compliance. Less Downtime: Reliable service and responsiveness optimize CEMS performance. Accurate Monitoring: Precise real-time emissions data for compliance and operations. Predictive Maintenance: Scheduled maintenance based on data trends to predict and prevent system failures. Cost Control: Regular maintenance controls repair costs and operational downtime. Knowledge Transfer: Expert training for environmental personnel, plant operators and technicians enhances system understanding and operation. Dedicated Temp CEMS Stay compliant, even during emergencies, with speedy service from our dedicated team of Temp CEMS experts and innovative mobile equipment. Minimize production downtime and maximize data collection with a customized Temp CEMS system, and expert technical and regulatory guidance. Assess the root cause of your existing system failure and design improved permanent systems with our CEMS specialists. Let our North American CEMS and dedicated Temp CEMS services be the cornerstone of your environmental and operational success. REQUEST INFORMATION “Our CEMS support hotline, deep bench of field service engineers, and large inventory of parts allows us to quickly respond to emergencies and solve issues efficiently.” Jason Miller Vice President, CEMS Read more about CEMS and Temporary CEMS services: Back to All Services

Ensure clean air with our expert air quality assessment services. Reliable solutions for real-time air quality assessment. Services / On-Site Testing / Fugitive Emissions / Ambient Air Monitoring Ambient Air Monitoring Clean Air, Complete Compliance Go beyond traditional monitoring with precise, real-time air quality insights that are as expansive as they are exact. END-TO-END SUPPORT From network design to equipment installation and operation, you can focus on your core business operations while we handle your system needs. COST-EFFICIENT MONITORING Our monitoring solutions deliver reliable performance without breaking the bank and are specially tailored for budget sensitive entities. PRIORITIZE HEALTH & SAFETY Stay informed about changing conditions in real-time to ensure the well-being of your employees, keeping health and safety at the forefront. Ambient Air Services Air Quality Monitoring | Meteorological Networks | Odor Assessments | Noise Consulting | Vapor Intrusion Programs Breathe Easy With Comprehensive Air Quality Monitoring Services Monitoring air quality is crucial for a clean environment. Our expert-driven national network offers a wide range of air quality services, ensuring both facility-specific and national standards are met. With us, you get thorough ambient monitoring, giving you peace of mind. Our responsibilities don’t end with installation, either. We handle ongoing maintenance, calibrations, and audits to ensure everything’s running perfectly. Plus, for an impartial review, we offer third-party accuracy checks of your air quality system. Ambient Air Monitoring is pivotal for measuring outdoor air pollution levels, crucial for regulatory compliance, public health, and informed decision-making. With our deep expertise and varied services, we ensure your organization stays compliant with national air quality standards while also managing other critical aspects like odor, noise, and vapor intrusion. Regulatory Compliance Ensuring compliance with local, state, and federal air quality regulations is pivotal for your operations. Ambient Air Monitoring helps you adhere to these regulatory mandates by providing precise measurements of air pollutants, averting potential legal complications and fines. Public Health Protection By monitoring and reporting the levels of harmful pollutants, these services also play a crucial role in protecting public health. The data obtained helps in understanding and mitigating the adverse effects of air pollution on communities in your area, ensuring a healthier living environment. Emission Control Strategies Monitoring ambient air quality provides essential data that aids in developing and implementing effective emission control strategies. By analyzing the trends and sources of emissions, industries and regulatory bodies can devise targeted interventions to reduce air pollution. Timely Data Provision Providing real-time or near real-time data on air quality to the public is essential for building trust and awareness. These services enable rapid and accurate dissemination of air quality information, which can also help build trust and greater engagement for your business. Service Benefits Enjoy peace of mind thanks to our comprehensive Ambient Air Quality Monitoring services, ensuring compliance and clean air. We offer intricate network design, equipment specification, regulatory liaising, quality assurance/monitoring plans, and robust data reporting. Our end-to-end service guarantees precise monitoring and seamless compliance, safeguarding both your operations and the environment. Services extends to site equipment installation, network commissioning, ongoing operation, maintenance, and third party accuracy assessments. Collected data is diligently reported to both clients and regulatory agencies in the required format. REQUEST INFORMATION “We’re not just checking a box—we’re making sure our clients can breathe easy, knowing their air quality systems are in expert hands.” Scott Manchester Director of Ambient Services VIEW OUR ACCREDITATIONS Back to All Services

Environmental Lab Experts Meet all your environmental lab testing and analysis needs seamlessly by using advanced Alliance labs with local, regional, and federal testing requirement expertise. Wastewater NPDES Stormwater VOCs Dioxins PCBs PFAS Inorganics Metals Soil Waste Groundwater Water Testing Specialized analysis for non-potable water, wastewater, stormwater, drinking, and NPDES compliance. Soil and Waste Testing Advanced soil and solid waste characterization, including TCLP for hazardous potential analysis. Ambient Air/Soil-Gas Analysis TO-15 and 8260 analyses for volatile organic compounds in air and soil-gas samples. Focused on YOU On-site and lab analysis customized for our clients’ unique compliance requirements, from complex contaminations to compliance checks. Environmental Labs The Alliance Lab Network Environmental Laboratory Stack Emissions Laboratory Stack/Oil & Gas Laboratory Potential Courier/
Dropoff Location DOD and NELAP accreditations; lab certifications in over 40 U.S. states and growing. ENVIRONMENTAL COMPLIANCE Expert guidance to extend your people and possibilities. Learn More ON-SITE TESTING & MONITORING Environmental testing and monitoring tailored to your needs. Learn More LABORATORY TESTING & ANALYSIS A national lab network that puts the focus on you. Learn More Testing for PFAS—the Forever Chemicals Upstream, Midstream, Downstream Flow stages: origin, process, final delivery. Source Emissions Analysis From extraction to transportation, supporting the entire lifecycle of oil and gas operations. Cr6+, Hg Metal HAPS Acid Gases Complex Organics Custody Transfers Precise analysis strengthens trust in transactional data during pipeline transfers. Greenhouse Gas Analysis Renewable Natural Gas, Biogas, & Refinery Gases Pressurized NGL, Condensate Pressurized Crude Oil & Produced Water Sales Oil Extended Gas & Liquid Flash Liberation Field Services Permit-Required Sample Collection Product Validation Sample Collection External Lab Access for
Specialized Analyses Oil & Gas Labs Environmental Lab Experts Meet all your environmental lab testing and analysis needs seamlessly by using advanced Alliance labs with local, regional, and federal testing requirement expertise. NPDES Wastewater Stormwater Groundwater Run Off Waste Soil PFAS TCLP Inorganics Metals VOC’s Dioxins PCB’s Water Testing Specialized analysis for non-potable water, wastewater, stormwater, drinking, and NPDES compliance. Soil and Waste Testing Advanced soil and solid waste characterization, including TCLP for hazardous potential analysis. Ambient Air/Soil-Gas Analysis TO-15 and 8260 analyses for volatile organic compounds in air and soil-gas samples. Focused on YOU On-site and lab analysis customized for our clients’ unique compliance requirements, from complex contaminations to compliance checks. Environmental Labs Reliable Contacts. Trusted Advisors. Alliance Environmental Lab leaders are some of the most experienced environmental scientists in the industry, and are available for your specific concerns. Reza Tand Director Laboratory Services 40 Years of Industry Experience Akron Lab Office: 330-253-8211 Mohammad Ahmed Director Laboratory Services 25 Years of Industry Experience Newark Lab Office: 908-728-3151 Matt Langston Director Laboratory Services 18 Years Industry Experience Seattle Lab Office: 206-352-3790 Chris Tisserat Director Laboratory Services 25 Years of Industry Experience Tustin Lab Office: 714-832-0064 Rebecca Musick Director Laboratory Services 17 Years of Industry Experience Greenville Lab Office: 864-232-1556 ALLIANCE LAB NETWORK Powerful National Lab Network. Trustworthy Local Service. Integrated Environmental Lab Testing for Industrial Sites Already trusted as the nation’s largest provider for Stack testing and LDAR services, Alliance labs seamlessly manage air, oil, and gas analyses. Now, turn to Alliance labs for wastewater, storm water, waste characterization, and more. Source Emissions Analysis Sampling and analysis across all stages of energy extraction, transportation, and product delivery. PM (filterable PM, condensable PM, PM-10, PM-2.5, OTM-37) Metals, including Hg Acid gases Combustion gases Volatile and Semi-Volatile Organics (total and speciated) Dioxins and Furans Formaldehyde Specialty Testing (PFAS, EtO, Combustors) Air Labs Permit Driven Analysis Pressurized NGL, Condensate Pressurized Crude Oil & Produced Water Greenhouse Gas Analysis RNG, Biogas, & Refinery Gases Sales Oil Extended Gas & Liquid Flash Liberation Custody Transfers Precise analysis strengthens trust in transactional data during pipeline transfers. Field Services Permit-Required Sample Collection Product Validation Sample Collection External Lab Access for
Specialized Analyses Oil & Gas Labs Upstream, Midstream, Downstream Environmental Labs Meet all your environmental lab testing and analysis needs seamlessly by using advanced Alliance labs with local, regional, and federal testing requirement expertise. NPDES Wastewater Stormwater Groundwater Run Off Waste Soil PFAS TCLP Inorganics Metals VOC’s Dioxins PCB’s Water Testing Specialized analysis for non-potable water, wastewater, stormwater, drinking, and NPDES compliance. Soil and Waste Testing Advanced soil and solid waste characterization, including TCLP for hazardous analysis. Ambient Air/Soil-Gas Analysis TO-15 and 8260 analyses for volatile organic compounds in air and soil-gas samples. Focused on YOU On-site and lab analysis customized for our clients’ unique compliance requirements, from complex contaminations to compliance checks. Environmental Labs Testing for PFAS—the Forever Chemicals Source Emissions Analysis Sampling and analysis across all stages of energy extraction, transportation, and product delivery. PM (filterable PM, condensable PM, PM-10, PM-2.5, OTM-37) Metals, including Hg Acid gases Combustion gases Volatile and Semi-Volatile Organics (total and speciated) Dioxins and Furans Formaldehyde Specialty Testing (PFAS, EtO, Combustors) Upstream, Midstream, Downstream Permit Driven Analysis Pressurized NGL, Condensate Pressurized Crude Oil & Produced Water Greenhouse Gas Analysis RNG, Biogas, & Refinery Gases Sales Oil Extended Gas & Liquid Flash Liberation Custody Transfers Precise analysis strengthens trust in transactional data during pipeline transfers. Field Services Permit-Required Sample Collection Product Validation Sample Collection External Lab Access for Specialized Analyses Air Labs Oil & Gas Labs Meet all your environmental lab testing and analysis needs seamlessly by using advanced Alliance labs with local, regional, and federal testing requirement expertise. NPDES Wastewater Stormwater Groundwater Run Off Waste Soil PFAS TCLP Inorganics Metals VOC’s Dioxins PCB’s Water Testing Specialized analysis for non-potable water, wastewater, stormwater, drinking, and NPDES compliance. Soil and Waste Testing Advanced soil and solid waste characterization, including TCLP for hazardous potential analysis. Ambient Air/Soil-Gas Analysis TO-15 and 8260 analyses for volatile organic compounds in air and soil-gas samples. Focused on You On-site and lab analysis customized for our clients’ unique compliance requirements, from complex contaminations to compliance checks. Environmental Labs Get the Best of Both Worlds. Together. One National Network. ALL Your Lab Needs. Discover Wastewater, Storm Water, and Waste Characterization services from Alliance. The better source for all your environmental testing needs. One National Network. ALL Your Lab Needs. Reach an experienced lab advisor today for help at your site. First name* Last name* Phone* Email* How can we help?* Talk to an Expert Reach an experienced lab advisor today for help at your site. First name* Last name* Phone* Email* How can we help?* Talk to an Expert We grew into the trusted all-in-one provider that every client desired. How can we make your compliance journey better? ENVIRONMENTAL COMPLIANCE Expert guidance to extend your people and possibilities. Learn More ON-SITE TESTING & MONITORING Environmental testing and monitoring tailored to your needs. Learn More LABORATORY TESTING & ANALYSIS A national lab network that puts the focus on you. Learn More ENVIRONMENTAL COMPLIANCE Expert guidance to extend your people and possibilities. Learn More ON-SITE TESTING & MONITORING Environmental testing and monitoring tailored to your needs. Learn More LABORATORY TESTING & ANALYSIS A national lab network that puts the focus on you. Learn More

Launching IP CEMS: A New Era in Part 75 Compliance The U.S. EPA Greenlights ESC Spectrum's (An Alliance Technical Group Company) New Integrated Path CEMS (IP CEMS) Technology for Air Emissions Compliance We have successfully demonstrated Integrated Path CEMS (also called optical in-situ monitoring) for air emissions compliance monitoring. The EPA agrees that the ESC Spectrum IP CEMS, as designed, meets the requirements of 40 CFR Part 75 and can now be provided as an option for our customers. Learn more in our press release below. Learn More "It’s an exciting time to be in the emissions compliance industry. We are proud to be at the forefront of innovative new technology to potentially reduce CEM system costs while improving measurement accuracy." Jeff Rabensteine Executive Vice President The Benefits of IP CEMS Technology More representative measurements can be made by using integrated path technology, eliminating sample transport and potential measurement biases, and providing a faster response time. Cost savings due to reduced calibration gas consumption and labor costs, less power usage, fewer emergency repairs, and spare parts for maintenance. Contact Us Below to Learn More! Want to know if IP CEMS is the right fit for you? Let’s chat! Our experts are happy to discuss your options and find the best solution for your needs. 256.351.0121 info@alliancetg.com 255 Grant St. SE Ste 600 Decatur, AL 35601 Copyright 2025 © Alliance Technical Group ABOUT SERVICES MARKETS NEWS CAREERS CONTACT PRIVACY POLICY Stay connected with Alliance.

Meet all your environmental lab testing and analysis needs seamlessly with our full-service laboratory with several years of expertise in Akron, OH. Services / Lab Testing & Analysis / Environmental Labs / Akron Environmental Lab Akron Environmental Lab About Alliance Technical Group - Akron is a full-service environmental testing laboratory offering comprehensive analytical services for organic, inorganic, radiochemical, and general chemistry analyses across soil, water, air, and waste matrices. Founded in 1994, our laboratory combines years of expertise, with state-of-the-art instrumentation and automation to deliver accurate, timely results that meet the most stringent regulatory requirements. REQUEST INFORMATION 330-253-8211 Core Capabilities Organic Analysis Volatile Organic Compounds (VOCs) - EPA 8260/624/524 Semi-Volatile Organic Compounds (SVOCs) - EPA 8270/625 Polyaromatic Hydrocarbons (PAH) - SIM 8270E Diesel/Heavy Oil Range Organics (DRO) - EPA 8015 Gasoline Range Organics (GRO) - EPA 8015 Non-Halogenated Organics (Alcohols, Glycols, etc.) - EPA 8015 Organochlorine Pesticides - EPA 8081/608 Polychlorinated Biphenyls (PCBs) - EPA 8082/608 Herbicides - EPA 8321 Dissolved Gases (Methane, Ethane, Ethene) - RSK-175 PFAS - EPA 1633, 533, 537.1 Dioxin/Furans - SGS AXYS 16130 Inorganic Analysis TAL Metals (23 metals) - ICP-AES/ICP-MS RCRA-8 Metals - Priority Pollutant Metals Cation-Exchange Capacity Hexavalent Chromium - SM 3500/EPA 7196 Mercury - EPA 7470/7471/245.1 TCLP Extraction - EPA 1311 Used Oil Analysis General Chemistry Anions (Full Scan) - EPA 300.0 Total Organic Carbon (TOC) - SM 5310C/EPA 9060A Biological/Chemical Oxygen Demand (BOD/COD) Total Suspended/Dissolved Solids (TSS/TDS/VSS) Nutrients (Ammonia, TKN, Phosphorus, Nitrate/Nitrite Cyanide, Sulfide, Phenolics Surfactants (MBAS/CTAS) Oil & Grease (HEM) - EPA 1664 pH, Alkalinity, Hardness, Conductivity, Turbidity Air/Stack Volatile Organics - TO-15 Dioxin/PAH - M23/M23A Radiochemistry Gross Alpha - EPA 7110/900.0/9310 Gross Beta - EPA 900.0/9310 Radium-226 - EPA 903.0/9315 Radium-228 - EPA 904.0/9320 Gamma Emitters - EPA 901.1/HASL-300 GA-01-R Uranium - EPA 200.8 Sample Information Sample Receiving Hours: Monday-Friday, 8:00 AM - 5:00 PM Saturday and Sunday receiving as per request Samples received after 4:00 PM begin TAT next business day at 8:00 AM Turnaround Times Standard: 7-10 business days from receipt Expedited options available: Same Day 1 Day 2 Days 3 Days 5 Days *Expedited TAT should be coordinated in advance Sample Pickup & Delivery Courier service for sample pickup & supply delivery Service radius: typically, 100-mile radius from lab Courier fees may apply - contact lab for details Containers & Supplies Sampling containers provided on request Chain-of-custody forms and coolers available Encore samplers, methanol kits, and TO-15 cannisters available upon request Contact lab for specific container requirements, holding times, and preservatives Reporting & Data Deliverables QC Packages Level I, II, III Level IV Drinking Water reporting available Electronic Data Deliverables (EDD) Wide range of existing EDD templates Custom EDD formatting available, tailored to specific project or client requirements. Value-Added Services Atlanta Facility ISO/IEC 17025:2017 accreditation Select wet chemisty parameters Supports clients throughout the Southeast Project Management Dedicated project managers for centralized communication Expedited turnaround coordination Technical consultations and QA/QC support Certifications & Programs State Certifications Florida NELA 30+ States Programs Ohio BUSTR Ohio VAP UCMR-5 View Accreditations & Certifications Industries Served - Utilities - Remediation Contractors - Real Estate/Property - Industrial Facilities - Legal/Litigation Support - Environmental Consulting - Government Agencies - Engineering Firms - Manufacturing - Oil & Gas 98% Client Satisfaction Akron Laboratory Get the Best of Both Worlds. Together. One National Network. ALL Your Lab Needs. Reach an experienced lab advisor today for help at your site. First name* Last name* Phone* Email* How can we help?* Talk to an Expert map Back to All Services

Bill S-211 Statement: Commitment to Ethical Supply Chains At Alliance Technical Group, we are committed to conducting our business ethically, responsibly, and in compliance with all applicable laws and regulations. As part of this commitment, we fully support efforts to eradicate forced labour and child labour from global supply chains. In accordance with Canada’s Bill S-211 – Fighting Against Forced Labour and Child Labour in Supply Chains Act, we have prepared and published our annual statement outlining the steps we have taken to prevent and reduce the risk of forced labour or child labour in our operations and supply chains. This statement reflects our ongoing dedication to upholding human rights and promoting transparency, accountability, and integrity across every aspect of our business. Download Our Signed Statement →

Critical 2025 air quality reporting deadlines & compliance guidance. Stay compliant with EPA requirements. Expert assistance from Alliance consultants. 2025 Air Reporting Deadlines The Better Way to Navigate Compliance Reporting deadlines are approaching fast—be proactive with expert help. Environmental compliance is more than just remembering a date—we know the process can be complicated. That’s why Alliance takes a proactive approach. Staying ahead gives us the flexibility to handle unexpected adjustments and ensure you meet your goals—on time. From deadline reminders to consulting expertise and even reporting, our experienced environmental consultants and compliance professionals help you every step of the way. Take the complexity, uncertainty, and hassle out of regulatory standards. Contact us to help you navigate compliance with confidence. Content h3 Click a State From the Map Below to View Air Reporting Deadlines Disclaimer: Alliance Technical Group shall not be held liable for any reliance on this content. It is the responsibility of the user to confirm compliance with all applicable regulations.

Hazardous Organic NESHAP (HON) compliance services & expertise. Regulatory strategy, testing & compliance management for chemical manufacturing facilities. HON RTR Amendment Years of Details. Clear Road to Compliance. The final EPA Risk and Technology Review (RTR) amendments for Hazardous Organic NESHAP (HON) became effective on July 15, 2024. It’s important to know what, when and how to plan for your course of action. Keep this page handy to quickly find critical compliance dates, requirements, and advice as you begin your implementation programs. Affected Source Types Content h3 What’s Changing? When’s Your Compliance Deadline? For every affected source—it’s wise to act early so you’ll have the foresight to understand where moderations and capital costs may be needed, and how to strategize the scheduling. Expand the tiles for key HON RTR facts at a glance. Our experts will soon be updating their areas with tips and advice. For immediate questions, contact our HON team for answers. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Together. Proactively. At Alliance Technical Group, our consultants and other subject matter experts review regulations that affect our clients. They are dedicated to knowing your industry needs and delivering tailored, best-in-class solutions. We encourage you to get familiar with the most recent HON amendments here. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Meet the Expert Jill Martin, Project Director, Environmental Consulting Jill’s extensive experience with the Chemical Manufacturing Sector, including her expertise with HON, makes her your trusted partner. Compliance Program Implementation Support | Gap Analyses | Technical Support Jill’s Proficiencies: Air Compliance Initial Compliance and Other Applicability Determinations (Chemical Manufacturing Sector NSPS and NESHAP regulations & Petroleum Refinery Sector NSPS and NESHAP regulations) Comprehensive Compliance Program Development (Above ground Storage Tanks, RICE, CEMS, Flares) Reporting Greenhouse Gas Mandatory Reporting Requirements Emissions Inventory Toxic Release Inventory Title V Compliance Reporting Consent Decree Compliance Reporting Periodic NSPS Compliance Reporting Periodic MACT Compliance Reporting Air Permitting Title V Permitting Miscellaneous Permitting Actions Public Notice Coordination Miscellaneous RCRA Permitting and Compliance Stack Test Observation Ambient Air Monitoring Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Partners in Proactive Implementation Quelling Concerns. Answering Questions. With so many details to know about HON RTR amendments, is your path to compliance clear for you? What’s the impact going to be, and how do you get started? Tap into Jill’s expertise and Alliance resources for your solutions. Between Jill and our other subject matter experts at Alliance, clients receive the most premium end-to-end environmental services from expert consulting services to testing, monitoring, and laboratory services available. Get reliable and prompt solutions for whatever regulatory challenges you may have. It’s the better way to ensure compliance. Get Help With Hon Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Process Vents Removal of the TRE Index, and more. Updated definition of Group 1 Process Vent, including removal of TRE as the basis for determination Enhanced requirements for process vents in EtO service New maintenance venting provisions New D/F standard for halogenated Group 1 Process Vents Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Equipment Leaks Plan ahead for revised equipment leak provisions. Enhanced requirements for equipment in ethylene oxide (EtO) service New work practice standards for atmospheric PRDs Updated requirements for surge control vessels and bottoms receivers Compliance Due: For Existing Sources: July 15, 2026 EtO driven compliance amendments. July 15, 2027 All other amendments. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Fenceline Monitoring Will you need fenceline monitoring? New fenceline monitoring requirements for affected sources that use, produce, store, or emit: benzene 1,3-butadiene ethylene dichloride vinyl chloride ethylene oxide (EtO) chloroprene Compliance Due: For Existing Sources: July 15, 2026 or July 15, 2027 Depending on the requirement. For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Flares New enhanced flare control device provisions. Incorporation of new operating and monitoring requirements for flare control devices. Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup, or by July 15, 2024 , whichever is later. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Wastewater Streams Wastewater streams impacted by EPA's risk review too. Incorporation of enhanced requirements for wastewater streams in EtO service. Compliance Due: For Existing Sources: July 15, 2026 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Transfer Racks Does the pressure exemption update impact you? Transfer operations that load “at an operating pressure greater than 204.9 kilopascals” are no longer exempted from the definition of transfer operation. Compliance Date(s): For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Heat Exchange Systems Changes to methods and requirements. Incorporation of the Modified El Paso Method Enhanced requirements for heat exchange systems in EtO service Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later. Storage Vessels Updates and new requirements. Updated definition of Group 1 Storage Vessel New requirements for internal floating roof tanks Enhanced requirements for storage vessels in EtO service New degassing requirements for Group 1 Storage Vessels Removal of pressure vessel exemption from the definition of storage vessel New monitoring requirements for pressure vessels Compliance Due: For Existing Sources: July 15, 2027 For New Sources: Upon initial startup or on July 15, 2024 , whichever is later.

Expert environmental consulting services for air, water & natural resources. Regulatory compliance, permitting & risk assessment from Alliance Technical Group. Services / Environmental Compliance / Environmental Consulting Environmental Consulting Answers you want for insights you need. A trusted authority on refining, chemical manufacturing, and oil & gas industries, Alliance partners with you to provide professional guidance, specialized services, and precision-driven solutions in air, water, and natural resources. With proficient and efficient environmental consultants on your team, you can be confident in accuracy, consistency, and responsiveness. Security of one source. Working with one proven, capable partner helps simplify processes, reduce risks, and build stronger business relationships with greater strategic value. Compliance peace of mind. With active roles in various trade groups, our consultants assure your regulatory compliance with comprehensive plans and step-by-step support. Short response times guaranteed. It’s never a good time for an incident, but our rapid-deployment teams get clients back on track fast, with mitigation strategies to minimize costs and protect reputations. Services & Solutions Environmental Consulting Air Quality | Water Quality | Natural Resources | Engineering Specialists in designing and building environmental programs that work, our consultants help you identify, understand, and address potential areas of environmental vulnerability and risk. Air Quality Services Air Permitting Collaborating with environmental, operational, and project teams, we deliver permit applications that effectively minimize compliance risks. We also work with local, state, and federal agencies to secure permits swiftly. Air Compliance Get tailored compliance and tracking solutions developed specifically for your organization. Air Dispersion Modeling Providing nationwide expertise in air pollutant dispersion modeling, Alliance consultants conduct NAAQS impact evaluations and state toxics screenings, with proficiency in various air dispersion models such as SCREEN3, ISCS, AERSCREEN, AND AERMOD. Reporting Building on a significant track record of successful reports that adhere to regulatory requirements, Alliance also provides the detailed, internal documentation required to obtain responsible official certification. GMAP (Geospatial Measuring of Air Pollutants) On-Demand Mobile Monitoring From identifying unknown emission sources and enhancing existing programs to assisting with EPA inspections and responding rapidly during incidents—GMAP uses real-time technology to deliver live data that can be accessed while in the field, allowing for immediate compliance. Risk Reduction | Real-Time Air Monitoring | Detailed Snapshots | Customized Backed by extensive expertise from EPA’s Office of Research and Development (ORD) GMAP program. Odor Assessment Services Odors from agricultural, commercial, industrial, and municipal sources can negatively affect nearby residents. Alliance offers specialized solutions for all your odor challenges. Odor Impact Assessments | Odor Emission Source Sampling |Odor Compliance Testing | Odor Consulting – Expert Witness Testimony Water Quality Services Hydrological & Hydraulic Studies Assisting you with TMDL, waste load allocations, and flow analysis, our specialties include dye tracer studies, flow modeling (such as HEC-RAS), and direct flow measurements. We help calculate regulatory low flows (e.g., 7Q10) to adjust pollutant load limits, working closely with state agencies, USGS, and EPA to ensure your water quality projects are successful. NPDES Permitting Your goal is our mission—to minimize costs associated with meeting water quality standards and effluent guideline requirements. We cover permit application development, review and negotiations; Adjudication support, reparation of pollution prevention plans, and NPDES data systems management (including DMR preparation). Stormwater Assisting industrial, construction, and municipal clients achieve cost-effective compliance with local, state, and federal stormwater discharge regulations. Natural Resources Biological Assessment Leveraging advanced techniques for fish, macroinvertebrate, periphyton, zooplankton, phytoplankton, and habitat analysis across diverse environments, our specialists are equipped to handle multiple site surveys in various waterbody sizes. Human Health Ecological Risk Assessment With more than 50 years of combined experience in water, groundwater, soil/sediment, and air, our team of scientists, toxicologists, and engineers provide ecological and human health risk assessments for industrial clients, with concerns ranging from heavy metals to organic pollutants. Stream and Wetland Restoration and Mitigation From step-pools and riffles to bank stabilization and in-stream habitat features, our team of ecologists, hydrologists, engineers, and wetland scientists collaborate to effectively restore and enhance wetland habitats for mitigation and water/stormwater treatment. USACE Permitting Providing strategic US Army Corps of Engineers (USACE) permitting services to reduce, avoid, or minimize impacts on Waters of the US, while controlling permitting and mitigation costs. Civil and Environmental Engineering Water, Wastewater, and Stormwater Design We provide solutions to wastewater, stormwater, and potable water infrastructure requirements for municipal, commercial, and industrial clients. Site Design Our site design capability includes planning, permitting, design, bidding, construction administration, and construction inspections. We serve residential and commercial developments, railways, and industrial facilities. Permitting & Funding Assistance We provide regulatory guidance and compliance assistance navigating the application of various federal and state environmental and permitting programs, and low-interest funding and loans. Industrial Process Capabilities Alliance has a team of engineers experienced in project studies and the design of industrial process solutions for chemical, pulp & paper, and pharmaceutical plants. Process and Mechanical Engineering As part of our industrial engineering services, we provide process and mechanical engineering studies to improve productivity by identifying, correcting or preventing weaknesses in the manufacturing and process systems. Surveying and Mapping Alliance has both licensed surveyors and GIS mapping experts in order to provide a seamless approach to every job and a higher-quality end result. REQUEST INFORMATION “Compliance is not just a requirement but a commitment. Our proactive approach to environmental compliance ensures that we not only meet regulatory standards but exceed them—leading the way in assisting our clients with their compliance goals.” Jeff Lask Senior Vice President, Environmental Compliance Division HON RTR Amendment Years of Details. Clear Road to Compliance. The final EPA Risk and Technology Review (RTR) amendments for Hazardous Organic NESHAP (HON) became effective on July 15, 2024 . It’s important to know what, when and how to plan for your course of action. Find critical compliance dates, requirements, and advice as you begin your implementation programs. Air Reporting Deadlines Interactive Map Staying compliant with environmental air reporting deadlines shouldn’t be a guessing game. That’s why we created a free interactive U.S. map that lets you: Find your state's specific air reporting deadlines Print a customized deadline list for your state Add key deadlines directly to your calendar Explore the map and take control of your compliance. VIEW AIR REPORTING MAP Back to All Services

SkyBridge cloud-based software for LDAR, OGI & emissions monitoring. Real-time data management, mobile access & automated reporting solutions. Services / On-Site Testing / Fugitive Emissions / SkyBridge Software SkyBridge Software Suite Transform with SaaS. SkyBridge cloud-based Software as a Service (SaaS) platform is specially developed for seamless, scalable, secure, and compliant real-time data management of LDAR, OGI, Cooling Towers, Fenceline Monitoring, and Air Permitting. Solutions SkyBridge Share accurate LDAR field data as it’s being captured and already updating your records in real-time. Safer and simpler than on-premises systems, SkyBridge ensures gated access with no firewall breaches, saves labor and IT costs, cuts errors, and is user-friendly. In addition to supporting traditional Method 21 monitoring, SkyBridge has built-in support for OGI camera surveys as well allowing for mixed-mode monitoring whether you are doing AWP or just supplemental monitoring with the camera. Cloud-Based Mobility | Real-Time Field Data | Accurate & Secure | Comprehensive Reporting | Seamless Updates SkyBridge OGI For compliance database management, SkyBridge OGI tackles midstream and upstream optical gas imaging challenges for the oil and gas industry, plus fugitive emissions programs in other industries by eliminating manual tasks, fragmented data, and weak security. Reduced Risks | Auto-generated CEDRI reports | Instant image/video uploads | Secure real-time data synchronization Get a Custom Demo Request your own simulated SkyBridge OGI demo when you contact us for more information. SkyBridge Fenceline Monitoring Experience the ease and efficiency of managing your program with SkyBridge Fenceline Monitoring software. With built-in regulatory requirements and business rules, instant data transfer and in-field documentation—make smart, fast data-driven decisions. Eliminate mundane manual tasks and wasted hours of work, and reduce risks from human errors. SkyBridge Cooling Towers Manage your cooling system with our secure, user-friendly solution. Eliminate data loss, boost efficiency, and organize inventory with a web app. For better decision-making, streamline reporting with detailed inspections, emissions reports, and inventory lists. Easily check your field data anytime, anywhere—whether you’re on a PC, laptop, tablet, or phone. All you need is a web browser. Ready to transform with SkyBridge? Your people will thank you for the user-friendly interfaces and streamlined efficiency. REQUEST INFORMATION See How SkyBridge OGI Works "Seamlessly designed for environmental teams, SkyBridge prioritizes compliance, efficiency, and data quality. Our intuitive suite of solutions enables you to confidently manage complex regulations, minimize time-consuming processes, and maintain data integrity—all in one place and in real-time." James Naron Vice President, Technology Back to All Services

Founded in 2000, Alliance Technical Group has grown from a small Alabama stack testing company to North America's leading environmental services provider with 1,805 employees. Learn more about Alliance Technical Group. Creating new possibilities and outcomes for our clients. Since 2000, we have been solving the problems of environmental management and compliance for some of the foremost companies and brands in North America. From on-site testing and monitoring, to laboratory testing and regulatory strategy, we are pushing out the limits of what is possible. We help our clients achieve their business objectives while also supporting their sustainability goals. OUR SERVICES 2200+ Dedicated Employees 60+ Locations in the US and Canada 110+ Mobile Laboratories Our Journey Founded in 2000 in Alabama as a small stack testing company, Alliance has since expanded into a full-service environmental compliance provider and a recognized leader in the North American market. A lot has changed for us since then, but one thing never will—we still put our clients first. EMPLOYEES 2000–2012 BUILDING THE BUSINESS 2012–2016 GROWTH THROUGH INVESTMENT 2016–2021 RAPID GROWTH & SERVICE LINE EXPANSION 2021–TODAY SCALING A NATIONAL/GLOBAL PLATFORM 2000 2 2005 10 2010 20 2015 50 2018 125 2020 675 2021 820 2022 945 2023 1,430 2024 1,720 2025 2,205 Stack Testing Lab Testing LDAR Ambient Air Consulting CEMS Software Acquisitions Since 2017, we have worked to increase our reach and improve our services through investments in our people, technology, and with acquisitions of these core businesses. Expand to see acquired companies 2025 Element One Labs Mid Continent Testing Labs Earth Analytical Sciences Global Analyzer Systems ESC Spectrum Environmental 360 Slipstream Environmental Services 2023-2024 DeNovo Global Technologies Ranger Analytics (Merger) GOLD, LLC CEMServices Rogers & Callcott Advanced Industrial Resources CEMSI Integrity Air Monitoring RSB Environmental Ortech Consulting Chemtech Consulting Group CEC Stack Test Group Summit Env. Tech Orange Coast Analytical Fremont Analytical Chester LabNet 2021-2022 GBMc & Associates EcoTest GuideWare CK Environmental InspectionLogic Pace Environmental CEM Solutions Interpoll Ace Consultants AAS Horizon Air Measurement Services Air Quality Services O’Brien & Gere EMSI Aeros Environmental 2017-2020 Almega Environmental and Technical Blue Mountain Summit Inspection Services METCO Environmental Air Pollution Testing Golden Specialty Our Commitment to Sustainability Our commitment goes beyond compliance—we create practical, scalable solutions that reflect our responsibility to protect our world. From reducing emissions and waste to supporting our people and communities, we’re focused on delivering meaningful progress today while building a more sustainable tomorrow. GET INVOLVED We are a new kind of environmental services company—powered by innovation, focused on service, and committed to your success. Our Reach With over 50 testing and laboratory locations across the United States and Canada, we are where you need us. Leadership Our team stands behind everything we do and commits to helping you succeed. From our frontline engineers and technical experts to our senior leaders, we are here for you. FROM LEFT: Chris LeMay, Jim Herr, Kim Van Soelen, Premal Vora, Tyler Rudman Chris LeMay Chief Executive Officer Tyler Rudman Chief Financial Officer Kim Van Soelen Chief Commercial Officer Jim Herr Chief Administrative Officer Premal Vora Chief Strategy Officer

Reach out to us for your testing, monitoring, and lab needs. Request more information below or use the locations map to contact one of our offices directly. Privacy Policy Last updated: October 15, 2024 Location: www.alliancetg.com This Privacy Policy describes Our policies and procedures on the collection, use and disclosure of Your information when You use the Service and tells You about Your privacy rights and how the law protects You. We use Your Personal data to provide and improve the Service. By using the Service, You agree to the collection and use of information in accordance with this Privacy Policy. Interpretation and Definitions Interpretation The words of which the initial letter is capitalized have meanings defined under the following conditions. The following definitions shall have the same meaning regardless of whether they appear in singular or in plural. Definitions For the purposes of this Privacy Policy: Account means a unique account created for You to access our Service or parts of our Service. Affiliate means an entity that controls, is controlled by or is under common control with a party, where "control" means ownership of 50% or more of the shares, equity interest or other securities entitled to vote for election of directors or other managing authority. Company (referred to as either "the Company", "We", "Us" or "Our" in this Agreement) refers to Alliance Technical Group. Cookies are small files that are placed on Your computer, mobile device or any other device by a website, containing the details of Your browsing history on that website among its many uses. Country refers to: United States Device means any device that can access the Service such as a computer, a cellphone or a digital tablet. Personal Data is any information that relates to an identified or identifiable individual. Service refers to the Website. Service Provider means any natural or legal person who processes the data on behalf of the Company. It refers to third-party companies or individuals employed by the Company to facilitate the Service, to provide the Service on behalf of the Company, to perform services related to the Service or to assist the Company in analyzing how the Service is used. Usage Data refers to data collected automatically, either generated using the Service or from the Service infrastructure itself (for example, the duration of a page visit). Website refers to Alliance Technical Group, accessible from You means the individual accessing or using the Service, or the company, or other legal entity on behalf of which such individual is accessing or using the Service, as applicable. Collecting and Using Your Personal Data Types of Data Collected Personal Data While using Our Service, We may ask You to provide Us with certain personally identifiable information that can be used to contact or identify You. Personally identifiable information may include, but is not limited to: Email address, first name and last name, phone number, address, state, province, ZIP/Postal code, city. First name and last name Phone number Address, State, Province, ZIP/Postal code, City Usage Data Usage Data Usage Data is collected automatically when using the Service. Usage Data may include information such as Your Device's Internet Protocol address (e.g. IP address), browser type, browser version, the pages of our Service that You visit, the time and date of Your visit, the time spent on those pages, unique device identifiers and other diagnostic data. When You access the Service by or through a mobile device, We may collect certain information automatically, including, but not limited to, the type of mobile device You use, Your mobile device unique ID, the IP address of Your mobile device, Your mobile operating system, the type of mobile Internet browser You use, unique device identifiers and other diagnostic data. We may also collect information that Your browser sends whenever You visit our Service or when You access the Service by or through a mobile device. Tracking Technologies and Cookies We use Cookies and similar tracking technologies to track the activity on Our Service and store certain information. Tracking technologies used are beacons, tags, and scripts to collect and track information and to improve and analyze Our Service. The technologies We use may include: Cookies or Browser Cookies. A cookie is a small file placed on Your Device. You can instruct Your browser to refuse all Cookies or to indicate when a Cookie is being sent. However, if You do not accept Cookies, You may not be able to use some parts of our Service. Unless you have adjusted Your browser setting so that it will refuse Cookies, our Service may use Cookies. Web Beacons. Certain sections of our Service and our emails may contain small electronic files known as web beacons (also referred to as clear gifs, pixel tags, and single-pixel gifs) that permit the Company, for example, to count users who have visited those pages or opened an email and for other related website statistics (for example, recording the popularity of a certain section and verifying system and server integrity). Cookies can be "Persistent" or "Session" Cookies. Persistent Cookies remain on Your personal computer or mobile device when You go offline, while Session Cookies are deleted as soon as You close Your web browser. Learn more about cookies on the article. We use both Session and Persistent Cookies for the purposes set out below: Necessary / Essential Cookies Type: Session Cookies Administered by: Us Purpose: These Cookies are essential to provide You with services available through the Website and to enable You to use some of its features. They help to authenticate users and prevent fraudulent use of user accounts. Without these Cookies, the services that You have asked for cannot be provided, and We only use these Cookies to provide You with those services. Cookies Policy / Notice Acceptance Cookies Type: Persistent Cookies Administered by: Us Purpose: These Cookies identify if users have accepted the use of cookies on the Website. Functionality Cookies Type: Persistent Cookies Administered by: Us Purpose: These Cookies allow us to remember choices You make when You use the Website, such as remembering your login details or language preference. The purpose of these Cookies is to provide You with a more personal experience and to avoid You having to re-enter your preferences every time You use the Website. For more information about the cookies, we use and your choices regarding cookies, please visit our Cookies Policy or the Cookies section of our Privacy Policy. Use of Your Personal Data The Company may use Personal Data for the following purposes: To provide and maintain our Service, including to monitor the usage of our Service. To manage Your Account: to manage Your registration as a user of the Service. The Personal Data You provide can give You access to different functionalities of the Service that are available to You as a registered user. For the performance of a contract: the development, compliance and undertaking of the purchase contract for the products, items or services You have purchased or of any other contract with Us through the Service. To contact You: To contact You by email, telephone calls, SMS, or other equivalent forms of electronic communication, such as a mobile application's push notifications regarding updates or informative communications related to the functionalities, products or contracted services, including the security updates, when necessary or reasonable for their implementation. To provide You with news, special offers and general information about other goods, services and events which we offer that are like those that you have already purchased or enquired about unless You have opted not to receive such information. To manage Your requests: To attend and manage Your requests to Us. For business transfers: We may use Your information to evaluate or conduct a merger, divestiture, restructuring, reorganization, dissolution, or other sale or transfer of some or all Our assets, whether as a going concern or as part of bankruptcy, liquidation, or similar proceeding, in which Personal Data held by Us about our Service users is among the assets transferred. For other purposes: We may use Your information for other purposes, such as data analysis, identifying usage trends, determining the effectiveness of our promotional campaigns and to evaluate and improve our Service, products, services, marketing and your experience. We may share Your personal information in the following situations: With Service Providers: We may share Your personal information with Service Providers to monitor and analyze the use of our Service, to contact You. For business transfers: We may share or transfer Your personal information in connection with, or during negotiations of, any merger, sale of Company assets, financing, or acquisition of all or a portion of Our business to another company. With Affiliates: We may share Your information with Our affiliates, in which case we will require those affiliates to honor this Privacy Policy. Affiliates include Our parent company and any other subsidiaries, joint venture partners or other companies that We control or that are under common control with Us. With business partners: We may share Your information with Our business partners to offer You certain products, services or promotions. With other users: when You share personal information or otherwise interact in the public areas with other users, such information may be viewed by all users and may be publicly distributed outside. With Your consent: We may disclose Your personal information for any other purpose with Your consent. Retention of Your Personal Data The Company will retain Your Personal Data only for as long as is necessary for the purposes set out in this Privacy Policy. We will retain and use Your Personal Data to the extent necessary to comply with our legal obligations (for example, if we are required to retain your data to comply with applicable laws), resolve disputes, and enforce our legal agreements and policies. The Company will also retain Usage Data for internal analysis purposes. Usage Data is generally retained for a shorter period of time, except when this data is used to strengthen the security or to improve the functionality of Our Service, or We are legally obligated to retain this data for longer time periods. Transfer of Your Personal Data Your information, including Personal Data, is processed at the Company's operating offices and other locations where involved parties operate. This may include transfers to locations outside of Your jurisdiction, where data protection laws may differ. Your consent to this Privacy Policy followed by Your submission of such information represents Your agreement to that transfer. The Company will take all steps reasonably necessary to ensure that Your data is treated securely and in accordance with this Privacy Policy and no transfer of Your Personal Data will take place to an organization or a country unless there are adequate controls in place including the security of Your data and other personal information. Delete Your Personal Data You have the right to request access to, correct, or delete the Personal Data that We hold about You. To make such a request, please contact Us at the email provided below. We will respond to Your request within a reasonable time frame, as required by law. Our Service may give You the ability to delete certain information about You from within the Service. You may update, amend, or delete Your information at any time by signing in to Your Account, if you have one, and visiting the account settings section that allows you to manage Your personal information. You may also contact Us to request access to, correct, or delete any personal information that You have provided to Us. Please note, however, that We may need to retain certain information when we have a legal obligation or lawful basis to do so. California, Colorado, Connecticut, Delaware, Florida, Indiana, Iowa, Montana, Oregon, Tennessee, Texas, Utah, and Virginia provide (now or in the future) their state residents with rights to: Confirm whether we process their personal information. Access and delete certain personal information. Correct inaccuracies in their personal information, taking into account the information's nature processing purpose (excluding Iowa and Utah). Data portability. Opt-out of personal data processing for: targeted advertising (excluding Iowa); sales; or profiling in furtherance of decisions that produce legal or similarly significant effects (excluding Iowa and Utah). Either limit (opt-out of) or require consent to process sensitive personal data. The exact scope of these rights may vary by state. To exercise any of these rights please info@alliancetg.com. Nevada provides its residents with a limited right to opt-out of certain personal information sales. Residents who wish to exercise this sale opt-out rights may submit a request to this info@alliancetg.com . [However, please know we do not currently sell data triggering that statute's opt-out requirements.] Disclosure of Your Personal Data Business Transactions If the Company is involved in a merger, acquisition or asset sale, Your Personal Data may be transferred. We will provide notice before Your Personal Data is transferred and becomes subject to a different Privacy Policy. Law enforcement Under certain circumstances, the Company may be required to disclose Your Personal Data if required to do so by law or in response to valid requests by public authorities (e.g. a court or a government agency). Other legal requirements The Company may disclose Your Personal Data in the good faith belief that such action is necessary to: Comply with a legal obligation Protect and defend the rights or property of the Company Prevent or investigate possible wrongdoing in connection with the Service Protect the personal safety of Users of the Service or the public Protect against legal liability Security of Your Personal Data The security of Your Personal Data is important to Us. While We strive to use commercially acceptable means, such as encryption and secure protocols, to protect Your Personal Data, We cannot guarantee its absolute security due to the inherent risks of online data transmission. Children's Privacy Our Service does not address anyone under the age of 13. We do not knowingly collect personally identifiable information from anyone under the age of 13. If You are a parent or guardian and You are aware that Your child has provided Us with Personal Data, please contact Us. If We become aware that We have collected Personal Data from anyone under the age of 13 without verification of parental consent, We take steps to remove that information from Our servers. If you believe that we might have any information from or about a child under 13, please contact us immediately so we can take appropriate actions. If We need to rely on consent as a legal basis for processing Your information and Your country requires consent from a parent, We may require Your parent's consent before We collect and use that information. Links to Other Websites Our Service may contain links to other websites that are not operated by Us. If You click on a third-party link, You will be directed to that third party's site. We strongly advise You to review the Privacy Policy of every site You visit. We have no control over and assume no responsibility for the content, privacy policies or practices of any third-party sites or services. Data Security The safety and security of your information also depends on you. Where we have given you (or where you have chosen) a password for access to certain parts of our Website, you are responsible for keeping this password confidential. We ask you not to share your password with anyone. Unfortunately, the transmission of information via the internet is not completely secure. Although we do our best to protect your personal information, we cannot guarantee the security of your personal information transmitted to our Website. Any transmission of personal information is at your own risk. We are not responsible for circumvention of any privacy settings or security measures contained on the Website. Changes to this Privacy Policy We may update Our Privacy Policy from time to time. We will notify You of any changes by posting the new Privacy Policy on this page. We will let You know via email and/or a prominent notice on Our Service, prior to the change becoming effective and update the "Last updated" date at the top of this Privacy Policy. You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page. Contact Us If you have any questions about this Privacy Policy, You can contact us: By email: info@alliancetg.com

Environmental assessment & remediation services including site characterization, soil testing & groundwater remediation. Expert solutions from Alliance TG. Services / Environmental Compliance / Assessment & Remediation Assessment & Remediation Understand and reduce your impact. Get expert advice and solutions for your environmental issues. We help clients understand potential risks in property transactions, assess known or suspected environmental impacts, and remediate existing contamination in soil, water, and air using an arsenal of investigative procedures and decades of experience to develop practical, cost-effective solutions. Environmental site assessments. Comprehensive due diligence in delivering full-service Phase I & II Environmental Site Assessments using ASTM standards. Investigative remediation services. Client need-based solutions are expertly delivered for contamination remediation of Air, Water, and Soil Matrices, including In-Situ Chemical Oxidation, Enhanced Bioremediation, and Soil Vapor Extraction. Advanced impact management. Decades of experience come together to offer solutions for wetland delineation, RCRA/CERCLA permitting, and long-term monitoring for environmental compliance and impact. Services & Solutions Assessment and Remediation Services Environmental Site Assessment Phase I and II | Wetland Delineation | Brownfield Redevelopment | RCRA/CERLA | Permitting | Media Management Planning | Remediation | ALTA Surveys | Topographic Surveys | Zoning Reports | Site Investigations | Brownfield Redevelopment Phase 1 Environmental Site Assessment (ESA): Phase 1 ESAs are conducted in general conformance with ASTM Standard E1527-21. The primary goal of a Phase I ESA is to identify recognized environmental conditions (RECs), which refer to the presence or likely presence of hazardous substances or petroleum products on a property that could pose a risk to human health or the environment. Historical Data Review Regulatory Database Review Site Reconnaissance Interviews Our team's capability to complete Phase 1 ESAs with a quick turnaround time ensures a comprehensive evaluation of the property's environmental status, facilitating informed decision-making regarding future actions. Phase 2 Environmental Site Assessment (ESA): A Phase II Environmental Site Assessment (ESA) is essential for evaluating a property's environmental condition and identifying potential contamination risks. This process involves several critical steps to ensure a thorough analysis. Sampling soil, groundwater, and air Using advanced equipment to collect samples Laboratory analysis to detect contaminants Risk assessment based on regulatory standards Detailed reporting with recommendations Our experienced team uses state-of-the-art equipment to provide reliable, actionable insights, helping clients mitigate risks and make informed decisions on property transactions or developments. Property Condition Assessment Conducting a Site Reconnaissance Reviewing Relevant Documents Interviews Reviewing User-Provided Information Cost Estimation Replacement Reserves Schedule Preparation of a PCA Report Remediation Following a site assessment, we address environmental impacts and reduce contaminants with custom-designed methods tailored to each situation. We avoid generic remediation plans, providing in-situ and ex-situ treatments and work closely with clients to find cost-effective solutions. These may involve traditional or innovative remedies, depending on site complexity. Our technologies include Chemical Oxidation and Reduction, Enhanced Bioremediation, Pump and Treat, Excavation, Soil Vapor Extraction, and Thermal Desorption. REQUEST INFORMATION “Through a proactive approach, we don’t simply meet regulatory standards—we exceed them, setting new benchmarks in environmental responsibility and empowering our clients to achieve their compliance goals with confidence.” Jeff Lask Senior Vice President Back to All Services

Comprehensive environmental services including consulting, compliance, testing, monitoring & laboratory analysis. Minimize risk & maximize results with Alliance experts. Delivering every environmental compliance service and solution your company needs. Let's get started. Discover our integrated line of services designed to meet all the environmental compliance needs and challenges your company faces. How can we make your compliance journey better? ENVIRONMENTAL COMPLIANCE Expert guidance to extend your people and possibilities. Minimize risk and maximize results with the clarity, insight, and deep domain knowledge needed to make informed decisions. Alliance consultants and compliance professionals are committed, responsive experts at uncovering innovative solutions to your challenges. Environmental Consulting Air, Water, and Natural Resources Compliance Services Audits, Reporting, and Health/Safety Assessment & Remediation Due Diligence, Engineering, and Remediation On-site Testing & Monitoring Testing and monitoring tailored to your needs. Your testing and monitoring results are critical. Our dedicated teams, advanced methods, and full-service collaboration ensures your success. We perform with precision, causing minimal operational downtime, if any. Source Testing Stack Testing, CEMS, Engine Testing, and RNG Fugitive Emissions LDAR, Ambient Air, OGI, and SkyBridge Software Laboratory Testing & Analysis A national lab network that puts the focus on you. Receive fast results and client focus of a local lab, with the capabilities and reach of an advanced national lab network. If your current lab provider doesn’t meet all your testing needs and timelines, or fails to offer actionable and effective results, turn to Alliance labs. Environmental Lab Services Water, Waste, and PFAS Oil & Gas Lab Services Upstream, Midstream, and Downstream

Renewable Natural Gas (RNG) testing & compliance services. Specialized testing for biogas facilities, landfills & anaerobic digesters from Alliance. Services / On-Site Testing / Source Testing / RNG (Renewable Natural Gas) Renewable Natural Gas (RNG) Services Precision Testing. Personalized Support. Pipeline-Ready Results. Renewable Natural Gas—also known as RNG, biomethane, or biogas—is a clean, sustainable energy solution with growing impact. As solid waste, wastewater, and agricultural operations embrace this fuel of the future, ensuring safe, compliant pipeline entry has never been more critical—or more complex. End-to-End RNG Testing & Compliance Services From the first sample to final reporting, Alliance simplifies RNG compliance with full-scope support in the United States and Canada. Sampling & Field Services Specialized services for water and hydrocarbon dewpoint, moisture content, and custom site needs. Skilled scientists handle your sampling, and often in as little as 1–2 days. Laboratory Testing & Analysis Our certified labs perform high-precision analysis for: H₂S Siloxanes CO₂/O₂ Ammonia Mercury VOCs Pesticides/PCBs Volatile Metals Biologicals Carbon-14 Moisture/Dewpoint Particulate and Compressor oil Regulatory & Compliance Support Air Permitting NSPS & NESHAP Greenhouse Gas (GHG) Reporting NPDES SPCC Pathway Registration (40 CFR Part 80) OSHA (confined space, hazardous materials, PPE, and process safety) Waste Management Batch Pathway Testing Product Transfer Documents (PTDs) Third-party audit coordination North American Consulting & Planning Get dedicated, experienced help from RNG scientists and engineers to determine if your facility needs comprehensive baseline testing or a less intensive path to meet quality and cost goals. We build and manage your sampling calendar to keep everything on track. The Alliance Difference Widespread Coverage, Reliable Results Rely on the powerful Alliance network for national sampling and lab capabilities, rapid turnaround and precision. Compliance Peace of Mind Our team is fluent in the requirements of interconnect agreements, EPA pathways, and emerging policies. We help de-risk your testing process and streamline your path to certification. Tailored Testing Solutions Every RNG site is different. We build the process around your feedback, your infrastructure, and your goals. Superior Client Service Clients work directly with expert scientists, engineers, and experienced RNG consultants who take time to explain the science and the strategy behind every result. Supporting Every RNG Pathway Alliance supports RNG testing and compliance at every stage of development: Landfill Gas Projects Wastewater Treatment RNG Dairies and Agricultural Digesters Food Waste-to-Energy Facilities Pipeline Interconnect Commissioning Whether you’re just starting site feasibility or operating a full-scale production facility, we’ll help you minimize risk, maximize uptime, and meet even the most rigid pipeline quality standards. RNG Testing—Challenge Accepted RNG sampling and analysis can be complex. Alliance makes it clear, fast, and reliable—so you can focus on producing clean, profitable energy. VIEW OUR ACCREDITATIONS “No two RNG projects are the same. That’s why we deliver customized testing solutions, clear results, and trusted guidance—every step of the way.” Shane Lee RNG Program Manager Contact an RNG Advisor First name* Last name* Phone* Email* How can we help?* Talk to an Expert Read More About RNG with Alliance Back to All Services

Get solutions for your most important and complex compliance challenges. From on-site assessments and monitoring to laboratory analyses for air, water, soil, and waste—Alliance can help you do it better. We are different. While others expect you to adapt to them, we adapt our approach and service delivery to you. We are built from the ground up with a single focus—to provide our clients with compelling responses to their environmental and compliance challenges. We take an innovative, technology-first approach to helping you solve your business problems while minimizing your impact on the environment. Commitment to getting it right. When “good enough” just isn’t enough, turn to us. We build accuracy, precision, and quality into everything we do. Fast and adaptive approach. We design our project teams around your precise goals, quickly deploying the right experts and equipment to meet your needs. Dedicated and experienced experts. Our engineers, scientists, and compliance professionals are creative problem solvers with a total focus on your goals. Technology-powered insight. We help you unify and integrate your initiatives by connecting many sites and data streams into a single easy-to-manage, technology-enabled portfolio. Markets we serve. We support leading companies and brands across a wide range of markets. We understand the special challenges of each sector and have the experience, approach, and capabilities to make a difference. Building & Construction Chemical & Processing Data Centers Energy & Power Environmental & Waste Management Food & Consumer Goods Government & Institutions Manufacturing & Production Oil & Gas Pulp & Paper Renewable Natural Gas (RNG) Semiconductors MARKETS & INDUSTRIES We are problem solvers. Get solutions for your most important and complex compliance challenges. From on-site assessments and monitoring to laboratory analyses for air, water, soil, and waste—Alliance can help you do it better. Environmental Compliance Build your winning regulatory strategy with help from our consultants and compliance experts—who bring the knowledge, insight, and proven industry experience to ensure your success. On-site Testing & Monitoring Expect reliable, on-time results without slowing down operations. For all your testing needs, we have the experienced teams and industry-leading technology to take it on. Laboratory Testing & Analysis Access a world-class lab network that combines broad reach with unmatched responsiveness. From sample collection to analysis, our technicians deliver precision and insight. OUR SERVICES Environmental compliance shouldn’t be an endless costly challenge. We help clients take back control. It starts with a fresh approach. Alliance is a new kind of environmental services company—powered by innovation, focused on service, and committed to client success. ABOUT US